#define  _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#include <string.h>
void reverse_arr(char* start, char* end)
{
	int i = 0;
	while (start < end)
	{
		char temp = *start;
		*start = *end;
		*end = temp;
		start++;
		end--;
	}
}
int main()
{
	char arr[] = { "wo shi shuai ge" };
	size_t len = strlen(arr);
	printf("original = %s\n", arr);
	reverse_arr(arr, arr + len - 1);
	printf("Reversed = %s\n", arr);
	return 0;
}